Sigma 20mm f/1.4 DG HSM Art Lens | Canon

Truly wide and truly fast, the 20mm f/1.4 DG HSM Lens is a member of the venerable Art series of Global Vision lenses from Sigma and pairs a sophisticated optical design with a robust physical construction. Comprised of 15 elements in 11 groups, the lens design includes two "F" Low Dispersion (FLD) elements, five Special Low Dispersion (SLD) elements, and two aspherical elements to significantly reduce chromatic and spherical aberrations, as well as limit distortion for clean, sharp, and evenly illuminated imagery. A Super Multi-Layer Coating has also been applied to minimize surface reflections, flare, and ghosting for increased contrast and color accuracy. The wide focal length and consistent image quality make this lens especially suitable for landscape, interior, architectural, and astrophotography applications, while the fast f/1.4 maximum aperture deems it ideal for natural and low-light shooting.

Complementing the optical performance is an equally adept Hyper Sonic Motor, which provides fast, smooth, and near-silent autofocus performance. This focusing motor also enables full-time manual focus override at any time just by rotating the focus ring for refined manual control and focusing as close as 10.9". The lens barrel is constructed using a Thermally Stable Composite material, which supports working in a wide variety of temperatures and conditions, and the lens mount is constructed from brass for long-term durability and mounting accuracy. Additionally, this lens is also compatible with the optional Sigma USB Dock for fine-tuned control over focusing parameters and other lens characteristics.

As part of the Art line within Sigma's Global Vision series, this lens' is designed to achieve truly notable optical performance and is ideally suited for creative and artistic applications.

Fast f/1.4 maximum aperture is well-suited for working in low-light conditions and also provides greater control over the focus position when using shallow depth of field techniques.

Two FLD, five SLD, and two aspherical elements have been incorporated within the lens design to correct for chromatic aberrations throughout the entire focusing range and help to ensure high image sharpness, clarity, and contrast regardless of focus point or aperture setting. This optical design also helps to control distortion and limit vignetting.

A Super Multi-Layer Coating has been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and color-neutral imagery, even in backlit conditions.

The integrated HSM (Hyper Sonic Motor) realizes quick and quiet autofocusing, which is further complemented by an optimized AF algorithm to produce smoother focusing performance. The HSM also permits full-time manual focus control simply by rotating the focus ring at any time.

A rounded nine-blade diaphragm helps to produce an attractive out-of-focus quality.

Fixed petal-shaped lens hood helps to reduce lens flare when working in strong lighting conditions and also offers some protection to the front element of the lens.

The lens is constructed using a Thermally Stable Composite (TSC) material, along with traditional metals, for greater precision and use in wide temperature variations.

The bayonet mount is constructed from brass for ensured accuracy and durability.

This lens is compatible with the optional Sigma USB Dock for fine-tuning different lens characteristics and updating its firmware.

Principal specifications
Lens type	Prime lens
Max Format size	35mm FF
Focal length	20 mm
Image stabilization	No
Lens mount	Canon EF, Nikon F (FX), Sigma SA Bayonet
Aperture
Maximum aperture	F1.4
Minimum aperture	F16
Aperture ring	No
Number of diaphragm blades	9
Aperture notes	Rounded blades
Optics
Elements	15
Groups	11
Special elements / coatings	Two FLD, five SLD elements + Super Multi-Layer coating
Focus
Minimum focus	0.30 m (11.81″)
Maximum magnification	0.14×
Autofocus	Yes
Motor type	Ring-type ultrasonic
Full time manual	Yes
Focus method	Internal
Distance scale	Yes
DoF scale	No
Physical
Weight	950 g (2.09 lb)
Diameter	91 mm (3.57″)
Length	130 mm (5.11″)
Sealing	No
Colour	Black
Hood supplied	Yes
Tripod collar	No

• Sigma 20mm f/1.4 DG HSM 
• Cover Lens Cap
• Rear Cap 

Delivery Address
If you wish to pay using your card then unfortunately due to the value of the products we sell we can only send orders to the billing address of your card.

However, If you need to have an item delivered to an alternative address to your billing address then we can do this but you would have to select to pay via either Bank Transfer or Amazon Pay.

By using Amazon Payments you can select one of your saved address on Amazon for your delivery - we are happy to help over the telephone if you have not used Amazon Payments before or if you are having any problems.
We understand this can sometimes be difficult with work commitments, but we will do our best to accommodate your needs.
Please note we are unable to accept card payments for orders placed from outside of the UK, the only methods of payment we can accept for orders from outside of the UK would be a bank transfer or Amazon Pay.

Shipping Time
For UK we normally ship out your order within 3 to 5 working days of receiving your cleared payment. If you require delivery by or before a certain date please call us on 02086695668 and we will do our best to accommodate your needs.

Shipping insurance is included in the cost of delivery. The following table is a guide to shipping times for orders:

UK	Ireland	Rest of Europe
FedEx / Royal Mail	UPS	UPS
3-5 Working days from Payment Processing	5-7 Working days from Payment Processing	5-10 Working days from Payment Processing

Collections
Alternatively, if you would rather come and collect from our office, you are more than welcome to. We would just require you to call us first on 02086695668 to place an order with us beforehand to check stock availability, and once your order is ready to collect, our sales team will contact you.